CHICAGO - The bar is buzzing on a busy night at Chicago Cut steakhouse as regulars Keith and Peg Bragg sit at a high table scanning the wine list.

Within seconds, they have all bottles under $40 at their fingertips using an iPad supplied by their server.

"You can very quickly look through to see the price per bottle," said Keith, a finance executive, as he scrolled through rows of selections. "You can read the wine tasting note, how long it has been aged."